70% of the area is covered by the forest. There are 22 areas of strict protection with the total area of 4 638 ha inside the Park. There is over 1245 species of vascular plants in the Park. 69 from them are protected from among them Purple Viper’s Grass (Scorzonera purpurea).

The fauna of the Park is very diversified, over 16 000 animal species inhabit this terrain. The most numerous groups are the insects

In order to protect the nature in the Kampinoski Primeval Forest elk, beaver and lynx have been reintroduced to their habitats. Protective actions undertaken in the Park also include the maintenance of a right water level.